1. (2023高二下·成都期中) 阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

Penicillin (青霉素) is widely considered(be) one of the most important medical discoveries in history, but it was not what Alexander Fleming was looking for when he found itSeptember 1928.

Fleming,scientist from Scotland, returned to his laboratory after a holiday and found some mould (霉菌) on one of his (plate) of bacteria (细菌). He observed that the bacteria (surround) the mould were dead. Surprised by this, Fleming performed some tests. The results indicated that something produced by the mould had killed the bacteria. He was  (whole) aware that it could be very  (use) for treating wounds.

For more than 10 years, Fleming had been researching penicillin and trying to make  into an effective medicine. Finally, his work caught the attention of some other scientists were able to do it. Since its mass production began in the1940s, penicillin  (save) millions of lives.